return 3 * JamoUTF8Len
	}
	return 2 * JamoUTF8Len
}

// decomposeHangul algorithmically decomposes a Hangul rune into
// its Jamo components.
// See https://unicode.org/reports/tr15/#Hangul for details on decomposing Hangul.
func (rb *reorderBuffer) decomposeHangul(r rune) {
	r -= hangulBase
	x := r % jamoTCount
	r /= jamoTCount
	rb.appendRune(jamoLBase + r/jamoVCount)

		return 3 * JamoUTF8Len
	}
	return 2 * JamoUTF8Len
}

// decomposeHangul algorithmically decomposes a Hangul rune into
// its Jamo components.
// See https://unicode.org/reports/tr15/#Hangul for details on decomposing Hangul.
func (rb *reorderBuffer) decomposeHangul(r rune) {
	r -= hangulBase
	x := r % jamoTCount
	r /= jamoTCount
	rb.appendRune(jamoLBase + r/jamoVCount)

1100..1159    ; valid                  ;      ; NV8    # 1.1  HANGUL CHOSEONG KIYEOK..HANGUL CHOSEONG YEORINHIEUH
115A..115E    ; valid                  ;      ; NV8    # 5.2  HANGUL CHOSEONG KIYEOK-TIKEUT..HANGUL CHOSEONG TIKEUT-RIEUL
115F..1160    ; disallowed                             # 1.1  HANGUL CHOSEONG FILLER..HANGUL JUNGSEONG FILLER
1161..11A2    ; valid                  ;      ; NV8    # 1.1  HANGUL JUNGSEONG A..HANGUL JUNGSEONG SSANGARAEA

	p := i.p
	next := p + hangulUTF8Size
	if next >= i.rb.nsrc {
		i.setDone()
	} else if i.rb.src.hangul(next) == 0 {
		i.rb.ss.next(i.info)
		i.info = i.rb.f.info(i.rb.src, i.p)
		i.next = i.rb.f.nextMain
		return i.next(i)
	}
	i.p = next
	return i.buf[:decomposeHangul(i.buf[:], i.rb.src.hangul(p))]
}

func nextDone(i *Iter) []byte {
	return nil
}

}

func (in *input) charinfoNFKC(p int) (uint16, int) {
	if in.bytes == nil {
		return nfkcData.lookupString(in.str[p:])
	}
	return nfkcData.lookup(in.bytes[p:])
}

func (in *input) hangul(p int) (r rune) {
	var size int
	if in.bytes == nil {
		if !isHangulString(in.str[p:]) {
			return 0
		}
		r, size = utf8.DecodeRuneInString(in.str[p:])
	} else {
		if !isHangul(in.bytes[p:]) {
			return 0

	p := i.p
	next := p + hangulUTF8Size
	if next >= i.rb.nsrc {
		i.setDone()
	} else if i.rb.src.hangul(next) == 0 {
		i.rb.ss.next(i.info)
		i.info = i.rb.f.info(i.rb.src, i.p)
		i.next = i.rb.f.nextMain
		return i.next(i)
	}
	i.p = next
	return i.buf[:decomposeHangul(i.buf[:], i.rb.src.hangul(p))]
}

func nextDone(i *Iter) []byte {
	return nil
}

}

func (in *input) charinfoNFKC(p int) (uint16, int) {
	if in.bytes == nil {
		return nfkcData.lookupString(in.str[p:])
	}
	return nfkcData.lookup(in.bytes[p:])
}

func (in *input) hangul(p int) (r rune) {
	var size int
	if in.bytes == nil {
		if !isHangulString(in.str[p:]) {
			return 0
		}
		r, size = utf8.DecodeRuneInString(in.str[p:])
	} else {
		if !isHangul(in.bytes[p:]) {
			return 0

		"\u306A\u305C\u307F\u3093\u306A\u65E5\u672C\u8A9E\u3092" +
			"\u8A71\u3057\u3066\u304F\u308C\u306A\u3044\u306E\u304B",
		"n8jok5ay5dzabd5bym9f0cm5685rrjetr6pdxa",
	},
	{
		// (H) Korean (Hangul syllables).
		"\uC138\uACC4\uC758\uBAA8\uB4E0\uC0AC\uB78C\uB4E4\uC774" +
			"\uD55C\uAD6D\uC5B4\uB97C\uC774\uD574\uD55C\uB2E4\uBA74" +
			"\uC5BC\uB9C8\uB098\uC88B\uC744\uAE4C",

    )

    // (G) Japanese (kanji and hiragana)
    testEncodeDecode(
      unicode = "なぜみんな日本語を話してくれないのか",
      punycode = "xn--n8jok5ay5dzabd5bym9f0cm5685rrjetr6pdxa",
    )

    // (H) Korean (Hangul syllables)
    testEncodeDecode(
      unicode = "세계의모든사람들이한국어를이해한다면얼마나좋을까",
      punycode = "xn--989aomsvi5e83db1d2a355cv1e0vak1dwrv93d5xbh15a0dt30a5jpsd879ccm6fea98c",
    )

    // (I) Russian (Cyrillic)

var Glagolitic <type 1>;
var Gothic <type 1>;
var Grantha <type 1>;
var GraphicRanges <type 20 [] <type 21 *<type 2>>>;
var Greek <type 1>;
var Gujarati <type 1>;
var Gurmukhi <type 1>;
var Han <type 1>;
var Hangul <type 1>;
var Hanunoo <type 1>;
var Hatran <type 1>;
var Hebrew <type 1>;
var Hex_Digit <type 1>;
var Hiragana <type 1>;
var Hyphen <type 1>;
var IDS_Binary_Operator <type 1>;
var IDS_Trinary_Operator <type 1>;